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1Oe3 Light – Refraction Telescope

$50.00 $38.00

The concept of a telescope:

A telescope applies the concept of light refraction.  It uses a magnifying lens to observe a distant object.  The convex lens is facing the object and the concave lens (a magnifying glass) is the eye piece.

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Description

望遠鏡的功用

  1. 放大影像
  2. 使影像明亮
  3. 使影像清晰

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